/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author            Notes
 * 2021-06-20     RiceChen          the first version
 */

#ifndef __DRV_GPIO_H__
#define __DRV_GPIO_H__

#include "gd32f4xx.h"
#include "gd32f4xx_exti.h"
//#include "gd32f4xx_rcu.h"
#include <rtdef.h>

#define GD32_PIN(index, port, pin) {index, RCU_GPIO##port,      \
                                    GPIO##port, GPIO_PIN_##pin, \
                                    EXTI_SOURCE_GPIO##port,     \
                                    EXTI_SOURCE_PIN##pin}
#define GD32_PIN_DEFAULT            {-1, (rcu_periph_enum)0, 0, 0, 0, 0}

#define __GD32_PORT(port)  GPIO##port

#define GET_PIN(PORTx,PIN) (rt_base_t)((16 * ( ((rt_base_t)__GD32_PORT(PORTx) - (rt_base_t)GPIO_BASE)/(0x0400UL) )) + PIN)
#define PIN_NUM(port, no) (((((port) & 0xFu) << 4) | ((no) & 0xFu)))
#define PIN_PORT(pin) ((uint8_t)(((pin) >> 4) & 0xFu))
#define PIN_NO(pin) ((uint8_t)((pin) & 0xFu))

#define PIN_GDPORT(pin) ((GPIO_BASE + (0x400u * PIN_PORT(pin))))
#define PIN_GDPIN(pin) ((uint16_t)(1u << PIN_NO(pin)))

struct pin_index
{
    rt_int16_t index;
    rcu_periph_enum clk;
    rt_uint32_t gpio_periph;
    rt_uint32_t pin;
    rt_uint8_t port_src;
    rt_uint8_t pin_src;
};

struct pin_irq_map
{
    rt_uint16_t pinbit;
    IRQn_Type irqno;
};

typedef struct
{
  uint32_t Pin;       
  uint32_t Mode;   
  uint32_t Pull;    
  uint32_t Speed;     
	uint32_t Otype;
}GPIO_InitTypeDef;





#endif
